Motor



(No Model.) i l2 sheets-slwyr.l

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ls/LOTQR,` N0.'J504,056. 'v 'Pat-ented .'Augi 29,1893.-

NITED STATES PATENT OFFICE.

LovELL H. sINoLAIR, E swITz CITY, INDIANA.

MOTOR.

SPECIFICATION forming part of Letters Patent No. 504,056, dated August 29, 1893.

Application filed May l, 1893. Serial No. 472,532. (No model.)

To all whom it may concern:

Be it known that I, LovELL H. SINCLAIR, a citizen of the United States, and a resident of Switz City, Greene county, State of Indiana, have invented certain new and useful Improvements in Mechanical Motors; and my preferred manner of carrying out the in vention is set forth in the following full, clear, and exact description, terminatingwith claims particularly specifying the novelty.

This invention relates to mechanical motors adapted for churning and other purposes,

v and more especially to that class of motors A which are driven by hand; and the object of the same is to produce a simple and improved machine for converting rotary motion into oscillatory motion and at an increased speed.

To this end the invention consists in the specific details of construction hereinafter more fully described, and as illustrated in the accompanying drawings, wherein- Figure lis a general perspective view of this machine ready for use. Fig. 2 is a plan view thereof showing the seat in full lines as opened for the admission of the operator,

and in dotted lines as closed. Fig. 3 is an enlarged perspective detail of the crank on the main shaft, the pitman rod, the rockshaft, its arm, and the joint between this arm and the pitman rod. Fig. 4 is a perspective detail of the crank pin and the two-part socket for embracing the ball on said pin.

In the said drawings, the letter b designates a base or platform from which rises a framework B about of the construction shown which comprises four upright legs, two side bars connecting the legs in pairs and open at their rear ends, and a cross-head connecting the forward legs at their upper ends, which ends extend slightly above the side bars. This framework is preferably of wood with suitable braces, and superimposed thereon is a second framework or casting A which is preferably of metal, about of the shape shown, and forms a support for the mechanism hereinafter described.

C is a seat pivoted as at c at one end of one of the side bars in such manner that it may be swung horizontally as seen in Fig. 2 so as to expose the opening at the rear end of the machine in order that the operator may pass into the framework, after which the seat is swung in under him so that he may sit thereon with-his thighs under the upper framework or casting and his feet resting upon the base. The letter X designates in the present case a vessel which may be a churn, and X is the dasher thereof whose staff passes through the cover of the churn in the usual manner. The u pper end of this stad is reduced as at X and is adapted to pass into a coupling S mounted on the lower end of a rockshaft S, after which it may be heldin said coupling by a thumb screw S. The rock-shaft S stands in a vertical position as. shown, and is mounted just above the coupling S in a bearing Y supported on a cross-head, while its upper end is journaled in the upper framework or casting and preferably carries a nut s above such casting which can be removed when it is desired to withdraw the shaft from its journals.

The letter T designates the main shaft having oppositely disposed crank-handles H on its extremities. This shaft is journaled in boxes in the casting A between which it carries the main driving Wheel M. The letter N designates a crank-shaft also journaled in boxes in the casting A, and between these boxes a small wheel F is secured on the shaft, which wheel is connected with the main wheel M by a belt m. On one end of the crank-shaft is a fly Wheel O of some considerable weight, v'and on its other end is the crank I having a number of holes 'i within any one of which a bolt or crank-pin J may be adjustably secured by its nut J in order to regulate the length of the throw of the crank.

I The connection between the crank-pin J and the rock-shaft S forms an essential feature of my invention, and is about as follows: G is a pitman rod journaled at one end on the crank-pin J and pivoted at its other end as at d to a U-shaped yoke D forming the smaller member of a joint. E is an arm having at one extremity an eye e adj ustably secured on the rock-shaft by a set screw e', while the other end of this arm carries a larger U-shaped yoke R forming the other member of said joint. Thev extremities of the last-mentioned yoke pass above and below those of the smaller yoke D, and L is a vertical pin dropped down through aligned eyes in the four extremities. By this means the membersof the joint are permitted to 105 turn in a horizontal plane, While the pivot d IOO permits the pitman rod G to move in a vertical plane as required by the motions of the crank N.

In operation, the vessel X is placed on the base b, the dasher is passed into the vessel, and its reduced upper end X is passed up ward into the socket S and secured therein by the set screw S so as to raise the foot of the dasher slightly above the bottom of the vessel and to sustain the weight thereof. The seat C is then swung back as shown in Fig. 2, the operator passes into the rear end of the framework B, turns the seat under him, sits on the same with his thighs under the casting A, and grasps the handles of the cranks Hin his two hands. Rotary motion is then imparted to the main wheel M which is communicated by the belt to the small wheel F and its shaft N. The crank I on said shaft drives the pitman rod G at quite a high speed, and the yoke D is moved4 forward and back in a horizontal plane. This motion of the yoke D moves the yoke R and the arm E forward and back according to the distance of the crank-pin J from the shaft N, and hence the rock-shaft S is rapidly oscillated through a portion of a complete revolution. When the churning is finished the operator passes out of the machine, disconnects the dasher from the socket, removes it from the churn body, and takes out the butter. It will be observed that the operator has a firm seat with his feet resting on the base, his knees comfortably beneath the casting A, and both hands in ready position to operate the cranks. The wheels M and F might be connected by gearing if desired, but I prefer belting because it renders the entire machine almost noiseless. I have found that an oscillatory, reciprocatory motion of the churn and dasher causes the butter to come in a very short time 'and is more desirable than a rotary motion. The sizes, proportions, and materials of parts are not essential, and considerable change iu the details may be made without departing from the spirit of my invention. One such change which occurs to me at this writing is that, instead ofv journaling the pit man rod loosely on the crank pin J, I may form a ballj on the outer end of such crank piu and make a socket at the end of the rod G by securing a detachable piece g thereto as by a bolt or screw g and providing` both the adjusting faces of the rod and piece with sockets g" as shown in Fig. 4.

What is claimed as new is- 1. In a mechanical motor, the combination with a framework consisting of a base, four legs rising therefrom, the forward ones of a greater height than the rearward ones, side bars connecting the legs in pairs and leaving' the framework open at its rear end, a seat pivoted to one side bar and adapted to swing over the other, and a cross-head connecting the upper ends of the front legs; of supports rising from said framework, an upright driving wheel journaled therein and having oppositely disposed cranks, and connections substantially as described between said wheel and the machinery to be driven, as and for the purpose set forth.

2. In ay mechanical motor, the combination with a framework, a driving shaft journaled therein, a second shaft also journaled therein and driven from the first, a crank on the second shaft having in its body a number of holes at various distances from said second shaft, and a crank-pin removably seated in one of said holes andhavinga ball at its outer end; of an upright rock-shaft mounted in bearings supported by the framework, an agitator detachably connected with the lower end of this shaft, an arm secured to the shaft and having a yoke, a second yoke pivotally connected with the first by an upright pin, a pitinan rod pivotally connected at one end to said second yoke and having a half-socket at its other end, a detachable piece having another half-socket adapted to complement the first and of a size to loosely embrace said ball, and a bolt detachably connecting said piece with thel socketed end of the pitman rod, as and for the purpose set forth.

3. In a mechanical motor, the combination with an upright rock-shaft, an agitator detachably connected with its lower end, and a horizontal arm secured at one end to said shaft and having at its other end a rigid U- shaped yoke; of a second U -shaped yoke whose extremities pass between those of the first, a vertical pin engaging aligned eyes in said extremities, a horizontal crank-shaft, a pitman rod connected to the crank and `pivoted ou a horizontal pivot to said second yoke, and means for rotating the crank-shaft, as and for the purpose set forth.

4. In a churn motor, the combination with an upright rock-shaft journaled in suitable bearings and having a threaded upper extremity, a nut on said extremity above the uppermost bearing, a socket on the lower end of said shaft beneath the lowermost bearing, a set screw in the side of said socket, a churn body and an agitator whose upper extremity is reduced and adapted to enter this socket, the length of the agitator being such that at this time its lower end is above the bottom ot' the churn body; of a crank-shaft, means for revolving it, a pitman rod connec-ted at one end with the crank, au arm having an eye at one end, a set screw in said eye whereby it is adj ustably secured on said rock-shaft, and a joint substantially as described between the outer end of said arm and the other end of said pitman rod, as and for the purpose set forth.

In testimony whereof I have hereunto subscribed my signature on this the 29th day of April, A. D. 1893.

LOVELL H. SINCLAIR.

Witnesses:

NETTIE RAINwATER, W. H. CoLE.

IOO

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